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Finding the Fourth Proportional to 3,568.19, 5,352.68 and 1,489.19

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Solution

The fourth proportional to 3,568.19, 5,352.68 and 1,489.19 is: 2,233.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,568.19 : 5,352.68 = 1,489.19 : x
  2. Step 2: Convert to fraction form
    3,568.19/5,352.68 = 1,489.19/x
  3. Step 3: Cross multiply
    3,568.19x = 5,352.68 × 1,489.19
  4. Step 4: Simplify right side
    3,568.19x = 7,971,134.49
  5. Step 5: Solve for x
    x = 7,971,134.49/3,568.19
  6. Step 6: Final answer
    x = 2,233.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.